A Scrubber, also known as a scrubber or absorber, is an industrial device used for absorption of some components of the gas mixture by the liquid.

It can be used both for purification of gases and capture of desired components from gas mixtures.

The scrubber works by absorbing the gas in the liquid, which in the device usually flows countercurrent to the gas.

The filled absorber is the most popular type of this type of apparatus in the industry, due to its simple structure and corrosion resistance.

It has the form of a column with a circular cross-section with a filling that increases the exchange surface between liquid and gas.

Single scrubbers are combined into larger batteries.